Frequency Ranges (ISM frequencies)
| Frequency | Wavelength |
|---|---|
| 433,92 MHz ± 0.2% | 69,14 cm |
| 915 MHz ± 13 MHz | 32,75 cm |
| 2450 MHz ± 50 MHz | 12,24 cm |
| 5800 MHz ± 75 MHz | 5,17 cm |
| 24125 MHz ± 125 MHz | 1,36 cm |
Table 1 shows the internationally determined ISM-frequencies used in industrial, scientific and medical applications. With the exception of the frequency 915 MHz, all the indicated frequencies are allowed in the German Federal Republic. In the field of industrial microwave heating, a frequency of 2450 MHz is almost exclusively employed for all applications.
Microwave Heating
By using microwave energy, heat is generated inside the product volume by directly transforming the electromagnetic energy into molecular kinetic energy.
Püschner Microwave Heating Advantages
Costs
- saves energy because only the product is heated
- compact units save space
- limiting factor "heating" on the process line is eliminated
- flexible modular design
- reliable with an intelligent service and maintenance concept
- environmentally friendly
Quality
- gentle on the product because of total volume heating
- high control and process speeds
- minimal delay before ready to use
- rapid heating to operating temperature
- uniform heat distribution